Locophone.



F. DELLA TGRRE.

APPLICATION FILED MR. 16l 1908.

LOCOPHNE.

Specification of Letters Zatent.

Application tiled. Merch 2S, Serial No. 435,033.

To all whom 'it may concern Be it known that l, FRANK Danna Tonne,

a citizen of the United States, residing atv Baltimore city, in the State of Maryland,

have invented a new and useful Locophone, ot s vhich the following is 'fi-specification.

My invention relates to a new and improved method and apparatus for detecting and determining the direction or position ot an object from which sounds emanate or are reflected, and is especially designed for use, as an aid to navigation or for ascertaining the position of a more or less dist-ant obj ect at night, during foggy Weather, or under similar conditions precludiiignormal observations.

Hy present invention has tor its object a method whereby an observer can quickly and with great accuracy determine the direct-ion of the 'object or station Jfrom whence acoustic signals are transmitted. The principal elements involved in my methods are a sound divider, means ot vibrating the same and means ot' relatively comparing the various parts oitl the 'divided Wave. l attain this object by the apparatus illustrated in the accompanying drawing, in Which- Y i Figure l is a perspective vieuT in a partial side elevation of my apparatus showing the method of mounting same; Fig. 2, is a vertilas cal end view especially showing by dotted lines the receivers; Fig. 3, is a plan view taken at right angles to the view shown in Fig. 2. Y

Similar numerals refer to similar parts throughout the several views.

l is the sound divider, which. is preferably rectangular and on each side of which are faces Q and 3. divider l is the surfaced forming the trontor cutting edge which separates faces 2 and 3; 5 and (i are the receivers located near onel end of faces 2 and 3 and flush therewith; ree

ceivers 5 and 6 leadto tubes 7 and 8, which tubes are siamesed into the single flexible tube 9 and to Which is connected piece Divider l with its receivers and tubes revolved about vertical shaft ll; l2 is hand Wheel secured tovertical shaft 1l for ope lating same. 13 is a pointer secured to shaft ll above hand wheel 12 to inform the operator as to the direction of divider l when the operator and divider are somewhat separater,"u

The operation ot my invention is as tol- The trout or :forward end' of i lows-Tlie operator placing himseliZ tor the easy manipulation ot the hand wheel l2 and the observatie-n of pointer i3 places the ear piece l0 at his ear and it desire may se- VYcure the saine by any Well known means. The eperatorbeing on the loolrout tor sound signals when hearing same proceeds at once tc rotate by short vibrations or rapid rotation divider l as shown by the following illustration, @rdinarily when the apparel tus is mounted on ship board divider l vvill be carried nominally at right angles to the heel pointing to port with ive will say tace 2 forward. Vle will take a concrete illustration; suppose a sound actually emanates troni a sourcetwo points oil' the starboard bovf,lio\v vill the operator und it? Heiears the sound throughfreceiver 5 which is lo cated in face 2, he proceeds to rotate the di-i vider l to the right at the same time vibrating .it untila point is reached Where the cutting edge et interferes-with the continuous sound. By means 'ot ,the rapid vibration anc the gradual revolving, the sound Wave thus divided by the cutting edge Ll, and thrown alternately into receivers 5 and 6 at a point reached when the faces 2 and 3 are alternately similarly located with reference to the source of sound. ln this case tor eX- ainple, the divider l will be pointing to the source ot sound, c., two points ott the starboard bout To determine Whether the sound. is two points ott the starboard bow or two points ott 'the port quarter, means is -pii'ovided for blanlting one ot the receiver by cover shown bj: tt or other convent n sing one of the rc eiv` Nu rie may then by swinging the divider l at rig-ht angles to thisl by ,reversing 13,0 degrees determine the actual source ot sound.

lNhat l claim as my iiiv" to secure by Letters Patent is ll The method of. locating a source of sound which consists in dividing the Waves aid source, and comnaring lY f gid.

emanating from said source, and comparing i the direction ot the divided parts by bring ing firstl one part then another through a common conductor rotated through a determined 3. nhe method oit deteiniinineY the direction of a sound Wave by iet'eiing the Same into one of two diainetiicaliy opposite refi 5. The method of locating a source of vibrations which consist-s 1n,v dividing the vibrating waves emanating from said source,

and comparing the direction of the divided parts by bringing first one part and then an-1 other part to a common point'.

In testimony in presence oftwo Witnesses.

r .FRANK DELLA TORRE,

Witnesses:

A WILLIAM WV. VARNEY H. W'ESTQN CROWL.

whereof I ax my signati'fre 2o 

